Solar Heliospheric Observatory

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Solar Heliospheric Observatory

(SOHO) An ESA satellite, with some NASA instrumentation, launched in 1995 into a halo orbit around the L1 Lagrangian point – the point 1.5 million km from Earth at which the gravitational pull of Sun and Earth balance. SOHO is designed to study the Sun's internal structure (see helioseismology), and the physical processes that form and heat the solar corona and give rise to the solar wind, which permeates the heliosphere. SOHO is part of ESA's contribution to the Solar/Terrestrial Energy Programme (STEP). Although its primary mission is to study the Sun, many of SOHO's solar images made using coronagraphs to block out the photosphere have revealed numerous hitherto unknown comets. By the start of 2005, SOHO had ‘discovered’ well over 900 comets.
References in periodicals archive ?
gov/feature/goddard/2017/esa-nasa-s-soho-reveals-rapidly-rotating-solar-core) NASA's Solar and Heliospheric Observatory called SOHO .
In 1995, SOHO, the Solar and Heliospheric Observatory, set out to study the Sun and the solar wind.
yuSTANBUL (CyuHAN)- These images from NASA's Solar Terrestrial Relations Observatory and the ESA/NASA Solar and Heliospheric Observatory show Comet ISON growing dim as it made the journey around the sun.
Experimental NASA research models, based on observations from NASA's Solar Terrestrial Relations Observatory and ESA/NASA's Solar and Heliospheric Observatory show that the CME left the sun at speeds of around 1350 miles per second, which is a fast speed for CMEs.
Rainer Kracht in Germany has identified 242 comet fragments plunging close by the Sun in images from the Solar and Heliospheric Observatory.
Hill, an expert in solar imaging, and science writer Carlowicz provide images from satellites such as Skylab and the Solar and Heliospheric Observatory.
Birmingham University astrophysicist Prof George Simnett said SOHO, which stands for Solar and Heliospheric Observatory, was now sending back a picture every 15 minutes as it was pointing at the sun.
The study is based on observations by the Comprehensive Suprathermal and Energetic Particle Analyzer (COSTEP) instrument on the Solar and Heliospheric Observatory.
However, there are other ways for a comet to die and one such incident was captured on camera by NASA and European Space Agency's Solar and Heliospheric Observatory (SOHO) on Aug.
It also shows the coronal mass ejections -- great clouds of solar material bursting off the sun into space -- during that time as captured by the ESA/NASA Solar and Heliospheric Observatory.
Experimental NASA research models, based on observations from the Solar Terrestrial Relations Observatory (STEREO) and ESA/NASA's Solar and Heliospheric Observatory, show that the CME left the sun at speeds of around 900 miles per second, which is a fairly fast speed for CMEs.
The main goal of this project is the development of an acceleration model for solar energetic particles, which is quantitatively consistent with the recent high energy observations provided by the ESA/NASA~s Solar and Heliospheric Observatory (SOHO) and the recently launched NASA~s Advanced Composition Explorer (ACE) missions.